Package io.reactivex.rxjava3.internal.observers

Class BlockingBaseObserver<T>

java.lang.Object

java.util.concurrent.CountDownLatch

io.reactivex.rxjava3.internal.observers.BlockingBaseObserver<T>

All Implemented Interfaces:

Observer<T>, Disposable

Direct Known Subclasses:

BlockingFirstObserver, BlockingLastObserver

public abstract class BlockingBaseObserver<T>
extends CountDownLatch
implements Observer<T>, Disposable

Field Summary

Fields

Modifier and Type	Field	Description
(package private) boolean	cancelled
(package private) Throwable	error
(package private) Disposable	upstream
(package private) T	value

Constructor Summary

Constructors

Constructor	Description
BlockingBaseObserver()

Method Summary

Modifier and Type	Method	Description
final T	blockingGet()	Block until the first value arrives and return it, otherwise return null for an empty source and rethrow any exception.
final void	dispose()	Dispose the resource, the operation should be idempotent.
final boolean	isDisposed()	Returns true if this resource has been disposed.
final void	onComplete()	Notifies the Observer that the Observable has finished sending push-based notifications.
final void	onSubscribe(Disposable d)	Provides the Observer with the means of cancelling (disposing) the connection (channel) with the Observable in both synchronous (from within Observer.onNext(Object)) and asynchronous manner.

Methods inherited from class java.util.concurrent.CountDownLatch

await, await, countDown, getCount, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface io.reactivex.rxjava3.core.Observer

onError, onNext

Field Details

value

T value

error

Throwable error

upstream

Disposable upstream

cancelled

volatile boolean cancelled

Constructor Details

BlockingBaseObserver

public BlockingBaseObserver()

Method Details

onSubscribe

public final void onSubscribe(Disposable d)

Description copied from interface: Observer

Provides the Observer with the means of cancelling (disposing) the connection (channel) with the Observable in both synchronous (from within Observer.onNext(Object)) and asynchronous manner.

Specified by:

onSubscribe in interface Observer<T>

Parameters:

d - the Disposable instance whose Disposable.dispose() can be called anytime to cancel the connection

onComplete

public final void onComplete()

Description copied from interface: Observer

Notifies the Observer that the Observable has finished sending push-based notifications.

The Observable will not call this method if it calls Observer.onError(java.lang.Throwable).

Specified by:

onComplete in interface Observer<T>

dispose

public final void dispose()

Description copied from interface: Disposable

Dispose the resource, the operation should be idempotent.

Specified by:

dispose in interface Disposable

isDisposed

public final boolean isDisposed()

Description copied from interface: Disposable

Returns true if this resource has been disposed.

Specified by:

isDisposed in interface Disposable

Returns:

true if this resource has been disposed

blockingGet

public final T blockingGet()

Block until the first value arrives and return it, otherwise return null for an empty source and rethrow any exception.

Returns:

the first value or null if the source is empty